2105535545 has 8 divisors (see below), whose sum is σ = 2527217160. Its totient is φ = 1684045440.

The previous prime is 2105535503. The next prime is 2105535557. The reversal of 2105535545 is 5455355012.

It can be written as a sum of positive squares in 4 ways, for example, as 120209296 + 1985326249 = 10964^2 + 44557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2105535545 - 2²² = 2101341241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22460 + ... + 68669.

It is an arithmetic number, because the mean of its divisors is an integer number (315902145).

Almost surely, 2^2105535545 is an apocalyptic number.

It is an amenable number.

2105535545 is a deficient number, since it is larger than the sum of its proper divisors (421681615).

2105535545 is an equidigital number, since it uses as much as digits as its factorization.

2105535545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95755.

The product of its (nonzero) digits is 75000, while the sum is 35.

The square root of 2105535545 is about 45886.1149477704. The cubic root of 2105535545 is about 1281.7033688214.

The spelling of 2105535545 in words is "two billion, one hundred five million, five hundred thirty-five thousand, five hundred forty-five".